"""Dosing inference."""

from __future__ import annotations

from app.models.dosing.pkpd_state import PKPDState


def infer_dosing_quality(state: PKPDState) -> dict[str, float]:
    target_attainment = max(0.0, min(1.0, 1.0 - abs(state.effect_level - 0.62)))
    toxicity_proxy = min(1.0, state.toxicity_level + state.organ_stress * 0.2 + state.interaction_load * 0.12)
    underdose_proxy = min(1.0, state.underdose_risk + max(0.0, 0.3 - state.effect_level))
    return {
        "target_attainment": target_attainment,
        "toxicity_proxy": toxicity_proxy,
        "underdose_proxy": underdose_proxy,
        "measurement_need": max(toxicity_proxy, underdose_proxy),
    }